US3224503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Individual
•
Filing: 1961-12-06
•
Granted: 1965-12-21
•
Expires: 1981-12-06
Abstract
No abstract record available.
Inventors
- 👤 Konanz Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:32
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/14; F28F1/22; F25; F25B; F25B39/00; F25B39/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A HEAT EXCHANGER COMPRISING, IN COMBINATION, A METAL PLATE HAVING AT LEAST ONE SUBSTANTIALLY RECTILINEAR, SUBSTANTIALLY SEMICIRCULAR CROSS-SECTION GROOVE EXTENDING THEREACROSS IN A FIRST DIRECTION; AND A CONDUIT HAVING AT LEAST ONE SUBSTANTIALLY RECTILINEAR PORTION EXTENDING CONFORMINGLY WITHIN SAID GROOV E; SAID PLATE BEING FORMED WITH ALIGNED SERIES OF PARALLEL LONGITUDINALLY SPACED SLITS EXTENDING SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF SAID GROOVE TO DEFINE STRIP SECTIONS IN ADJACENT RELATION IN SAID FIRST DIRECTION, SAID STRIP SECTIONS BEING ALIGNED IN ROWS EXTENDING IN SAID FIRST DIRECTION WITH THE ROWS EXTENDING SUBSTANTIALLY PERPENDICULAR TO THE LENGTHS OF SAID STRIP SECTIONS; ADJACENT STRIP SECTIONS IN EACH SERIES AND IN EACH ROW BEING OFFSET FROM RESPECTIVE OPPOSITE SURFACES OF SAID PLATE, WHEREBY EACH SERIES OF STRIP SECTIONS HAS THE NATURE OF AN UNDULATING STRIP EXTENDING SUBSTANTIALLY NORMAL TO THE AXIS OF SAID GROOVE; ADJACENT ROWS OF STRIP SECTIONS BEING SEPARATED BY RELATIVELY NARROW PLANAR STRIP PORTIONS OF SAID PLATE EXTENDING IN SAID FIRST DIRECTION.
Claim 2
Dependent Claim
160 words
A HEAT EXCHANGER COMPRISING, IN COMBINATION, A METAL PLATE HAVING AT LEAST ONE SUBSTANTIALLY RECTILINEAR, SUBSTANTIALLY SEMICIRCULAR CROSS-SECTION GROOVE EXTENDING THEREACROSS IN A FIRST DIRECTION; AND A CONDUIT HAVING AT LEAST ONE SUBSTANTIALLY RECTILINEAR PORTION EXTENDING CONFORMINGLY WITHIN SAID GROOV E; SAID PLATE BEING FORMED WITH ALIGNED SERIES OF PARALLEL LONGITUDINALLY SPACED SLITS EXTENDING SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF SAID GROOVE TO DEFINE STRIP SECTIONS IN ADJACENT RELATION IN SAID FIRST DIRECTION, SAID STRIP SECTIONS BEING ALIGNED IN ROWS EXTENDING IN SAID FIRST DIRECTION WITH THE ROWS EXTENDING SUBSTANTIALLY PERPENDICULAR TO THE LENGTHS OF SAID STRIP SECTIONS; ADJACENT STRIP SECTIONS IN EACH SERIES AND IN EACH ROW BEING OFFSET FROM RESPECTIVE OPPOSITE SURFACES OF SAID PLATE, WHEREBY EACH SERIES OF STRIP SECTIONS HAS THE NATURE OF AN UNDULATING STRIP EXTENDING SUBSTANTIALLY NORMAL TO THE AXIS OF SAID GROOVE; ADJACENT ROWS OF STRIP SECTIONS BEING SEPARATED BY RELATIVELY NARROW PLANAR STRIP PORTIONS OF SAID PLATE EXTENDING IN SAID FIRST DIRECTION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |